4. Design and function
WIKA Operating Instruction High Pressure Controller, Model CPC8000-H
19
GB
1
42
3
59
9
3
.0
0/
0
6/2
0
17
/GB
Supply Port
The pres
sure supplied to the pressure connection labeled “Supply” should be approximately
10% higher than the full scale of the highest pressure transducer installed in the controller
(see the label on the lower right of the front panel).
Exhaust Port
Not use in this instrument version. Leave this port open atmosphere.
Vent Port
The pressure connection labeled “Vent” is the exhaust port where the system pressure is
vented to the atmosphere under certain conditions. Leave this port open or connect the
optional muffler for noise reduction.
Reference Port
This is the pressure connection to the reference ports of sensors with ranges <50 psi (4 bar)
gauge.
INFORMATION
!
The Reference port should be left open to the atmosphere and should NEVER
be connected to a pressure source.
Measure/Control Port
The Measure/Control port (when in the Control mode) supplies a precisely controlled pressure
to the pressure multiplier in the CPC8000-HM which is converted into a hydraulic pressure. In
Measure mode a pressure applied to the Measure/Control port is measured by the instrument
sensor.
Barometric Reference
The Barometric Reference port is connected to the internal barometric sensor and should be
left open to atmospheric pressure.
The higher the supply pressure connected to the Supply port, the higher the pressure which leaves the
system through the exhaust port. If a vacuum pump is connected to the exhaust port, adequate safety
precautions have to be taken to prevent damage to the pump.
Before the system is connected, the user must ensure that suitable protection measures are in place
which exclude overpressuring of the test piece or the system.
Figure 4-5 recommendation for pneumatic connections
Open
Clean dry air or Nitrogen
regulated pneumatic
supply pressure set at
(approx.: hydraulic FS/ 50)
open
Open
Open
Device
under test
